Barnes 2SEV, Installation And Operation Manual

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Repeat cable and terminal block removal procedure for any
control cables (56) if equipped. Remove socket head screws
(47). Vertically lift the motor housing (6) from seal plate (5) by
lifting handle (13). Inspect square ring (27) for damage or cuts.
Remove the motor bolts and lift motor stator from seal plate
(5). Disconnect capacitor leads from capacitor (9, single
phase units). Examine bearing (25) and replace if required. If
replacement is required, remove bearing (25) from motor shaft
using a wheel puller or arbor press, see Figure 11
Check motor capacitor (9, single phase units) with an Ohm
meter by first grounding the capacitor by placing a screwdriver
across both terminals and then removing screwdriver.
Connect Ohm meter (set on high scale) to terminals. If needle
moves to infinity (
∞
) then drifts back, the capacitor is good. If
needle does not move or moves to infinity (
∞
) and does not
drift back, replace capacitor (9).
If moisture sensors (4, optional) are damaged, disconnect
leads by removing machine screws (45) and washers (46)
from probes (4). Remove probes (4) from seal plate (5). To
test the temperature sensor (50, optional), check for continuity
between the black and white wires. If found to be defective,
contact a motor service station or Barnes Pumps Service
department. Inspect motor winding for shorts and check
resistance values. Check rotor for wear. If rotor or the stator
windings are defective, the complete motor must be replaced.
Important ! - All parts must be clean before
reassembly.
F-4.2) Reassembly:
Moisture Sensors, DS Models -
If pump is equipped with
optional moisture sensors, reassemble by applying thread
compound to threads on probes (4) and install in upper seal
plate (5), see Figures 17 and 18. Connect wire assemblies
(53) to probes (4) with washers (46) and machine screws (45).
Thermal Sensors- If pump is equipped with optional thermal
sensors use terminal connectors (52) to connect wire
assemblies (51) to sensor leads. If found to be defective,
contact a motor service station or Barnes Pumps Service
department.
Bearings- When replacing bearing, be careful not to damage
the rotor or shaft threads. Clean the shaft thoroughly. Press
bearing (25) on the motor shaft, position squarely onto the
shaft applying force to the inner race of the bearing only, until
bearing seats against the retaining ring (24).
Motor- Slide lower bearing (25) and motor shaft squarely into
the seal plate (5) until bearing seats on the bottom. Place
stator over rotor, lining up motor bolts with holes in seal plate
(5). Position capacitor (9, single phase units) so that it will lay
on the opposite side of the cable entry bosses of the motor
housing (6). Reconnect capacitor leads. Torque motor tie bolts
to 17 in-lbs. Set square ring (27) in grove on seal plate (5).
Fig. 10
Fig. 11
13